Phase behavior and stability of perfluorinated homopolymer surfactant/water/carbon dioxide system
Perfluorinated homopolymers, poly(heptadecafluorodecyl acrylate) (poly(HDFDA)), poly(heptadecafluorodecyl methacrylate) (poly(HDFDMA)) and ((perfluorooctyl)ethylthio)methyl-substituted poly(oxyethylene) (H2F8TP) were proposed as surfactants in water-in-carbon dioxide (W/C) microemulsion. To confirm possibility as surfactants in W/C microemulsion, we carried out phase behavior measurement using variable volume view cell for surfactant + H2O + CO2 system with varying molar ratios of water to surfactant (wo). Cloud point studies confirmed that optically transparent and thermodynamically stable reverse micelles solutions were formed with the perfluorinated homopolymer surfactants. And dispersion polymerization of PMMA, PVP and PVCL was performed in scCO2 using poly(HDFDA), poly(HDFDMA) and H2F8TP as surfactant to find out relation and difference of role as surfactants in W/C microemulsion and in dispersion polymerization, respectively.
water-in-CO2 microemulsion Perfluorinated homopolymer Phase behavior Dispersion polymerization
Jungin Shin Byoung Gak Kim Won Bae Hwayong Kim
School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul national Un R&D Institute, Miwon Commercial Co., Ltd., 405-3, Moknae-Dong, Ansan-Si, Kyonggi, 425-100, Korea
国际会议
The 5th International Conference on Separation Science and Technology(第五届国际分离科学与技术会议)
北京
英文
2007-10-14（万方平台首次上网日期，不代表论文的发表时间）